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<link rel='stylesheet' href='../../../js/sh/SyntaxHighlighter.css' type='text/css' />
<script src='../../../js/sh/shCore.js'></script>
<script src='../../../js/sh/shBrushJava.js'></script>
<style>
* {
font-family:Courier New,monospace;
  padding: 0;
  margin: 0;
  white-space: nowrap;
  font-size: 11px;
}
.dp-highlighter {
  white-space: nowrap;
  overflow: visible;
  width: 600px;
  font-size: 11px;
  font-family:Courier New,monospace;
}
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<textarea name='code' class='java:nogutter' rows='15' cols='120'>
/*
 * SmartGWT (GWT for SmartClient)
 * Copyright 2008 and beyond, Isomorphic Software, Inc.
 *
 * SmartGWT is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version 3
 * as published by the Free Software Foundation.  SmartGWT is also
 * available under typical commercial license terms - see
 * http://smartclient.com/license
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 */

import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.form.DynamicForm;
import com.smartgwt.client.widgets.form.FormItemIfFunction;
import com.smartgwt.client.widgets.form.fields.CheckboxItem;
import com.smartgwt.client.widgets.form.fields.DateItem;
import com.smartgwt.client.widgets.form.fields.FormItem;
import com.smartgwt.client.widgets.form.fields.events.ChangeEvent;
import com.smartgwt.client.widgets.form.fields.events.ChangeHandler;

public class FormShowHideSample implements EntryPoint {

      
    public void onModuleLoad() {
    	
        final DynamicForm form = new DynamicForm();
        form.setWidth(300);
        
        final DateItem orderDate = new DateItem();
        orderDate.setName("orderDate");
        orderDate.setTitle("Order Placed");
        orderDate.setRequired(true);
        orderDate.setVisible(false);

        CheckboxItem onOrder = new CheckboxItem();
        onOrder.setName("onOrder");
        onOrder.setTitle("Shipment on order");
        onOrder.setRedrawOnChange(true);
        onOrder.setWidth(50);
        onOrder.setValue(false);

        orderDate.setShowIfCondition(new FormItemIfFunction() {
            public boolean execute(FormItem item, Object value, DynamicForm form) {
                return (Boolean)form.getValue("onOrder");
            }
        });
                
        form.setFields(onOrder, orderDate);

        form.draw();
    }

}
</textarea>
<script class='javascript'>
dp.SyntaxHighlighter.HighlightAll("code");
</script>
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